block: add partition resize function to blkpg ioctl

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / block / partition-generic.c

diff --git a/block/partition-generic.c b/block/partition-generic.c
index 6df5d6928a440c53b44f158ea99b98d7d9a48660..f1d14519cc040424e79fe0f35f446e4d4e7a123d 100644 (file)
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -84,7 +84,7 @@ ssize_t part_size_show(struct device *dev,
                       struct device_attribute *attr, char *buf)
 {
        struct hd_struct *p = dev_to_part(dev);
-       return sprintf(buf, "%llu\n",(unsigned long long)p->nr_sects);
+       return sprintf(buf, "%llu\n",(unsigned long long)part_nr_sects_read(p));
 }
 
 static ssize_t part_ro_show(struct device *dev,
@@ -294,6 +294,8 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
                err = -ENOMEM;
                goto out_free;
        }
+
+       seqcount_init(&p->nr_sects_seq);
        pdev = part_to_dev(p);
 
        p->start_sect = start;